CN218461697U

CN218461697U - Dividing headstock of crankshaft grinder

Info

Publication number: CN218461697U
Application number: CN202221555673.XU
Authority: CN
Inventors: 李泽伟
Original assignee: Chengdu Ruilifeng Tools Co ltd
Current assignee: Chengdu Ruilifeng Tools Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2023-02-10
Anticipated expiration: 2032-06-21

Abstract

The utility model provides a crankshaft grinder's graduation headstock. The dividing head frame of the crankshaft grinding machine comprises a bottom plate; the two limiting plates are fixedly arranged at the top of the bottom plate; a top plate disposed on top of the bottom plate; the U-shaped plate is fixedly arranged at the top of the top plate; the main shaft is rotatably arranged on the U-shaped plate; the hydraulic chuck is fixedly arranged at one end of the main shaft; the electric indexing mechanism is arranged on the U-shaped plate; the height adjusting mechanism is arranged at the top of the bottom plate. The utility model provides a crankshaft grinder's graduation headstock has the advantage that the operation is comparatively convenient, comparatively labour saving and time saving, can adjust the machining height of work piece.

Description

Dividing headstock of crankshaft grinder

Technical Field

The utility model relates to a bent axle processing technology field especially relates to a crankshaft grinder's graduation headstock.

Background

The crankshaft is the most important component in an engine. It receives the force from the connecting rod and converts it into torque to be output by crankshaft and drive other accessories on engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the surface of the journal needs to be wear-resistant, work uniformly and balance well. The indexing head frame is required to fix the crankshaft in the crankshaft machining process, and the crankshaft is rotated by a fixed angle in the machining process, so that the crankshaft can be machined by the grinding machine from a corresponding angle.

However, the existing indexing head frame usually calculates the corresponding angle according to the hole disc by manual work, and then rotates the workpiece to a fixed angle through a hand wheel for a fixed number of turns and angles, which is time-consuming and labor-consuming; meanwhile, the conventional indexing head frame cannot adjust the machining height of a workpiece.

Therefore, there is a need to provide an index head for a crankshaft grinder that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide an operation comparatively convenient, comparatively labour saving and time saving, the dividing headstock of the crankshaft grinder of the machining height that can adjust the work piece.

In order to solve the technical problem, the utility model provides a crankshaft grinder's graduation headstock includes: a base plate; the two limiting plates are fixedly arranged at the top of the bottom plate; a top plate disposed on top of the bottom plate; the U-shaped plate is fixedly arranged at the top of the top plate; the main shaft is rotatably arranged on the U-shaped plate; the hydraulic chuck is fixedly arranged at one end of the main shaft; the electric indexing mechanism is arranged on the U-shaped plate; the height adjusting mechanism is arranged at the top of the bottom plate; and the synchronous rotating mechanism is arranged at the top of the bottom plate.

Preferably, electronic indexing mechanism includes first worm, first worm wheel, step motor, initiative bevel gear, driven bevel gear and controller, first worm rotates to be installed the top of roof, first worm with the U template rotates to be connected, the fixed cover of first worm wheel is established on the main shaft, first worm wheel with first worm meshes mutually, step motor fixed mounting be in the top of U template, the fixed cover of initiative bevel gear is established on step motor's the output shaft, the fixed cover of driven bevel gear is established on first worm, initiative bevel gear with driven bevel gear meshes mutually, the controller sets up one side of U template, the controller with step motor electric connection.

Preferably, the height adjusting mechanism comprises two screws, a lifting plate and a cylinder, the two screws are rotatably installed at the top of the bottom plate, the lifting plate is sleeved on the two screws in a threaded manner, the cylinder is fixedly installed at the top of the lifting plate, and the cylinder is fixedly connected with the top plate.

Preferably, the top ends of the two screws are fixedly provided with limit blocks.

Preferably, the synchronous rotating mechanism comprises a double-shaft motor, two second worms and two second worm gears, the double-shaft motor is fixedly mounted at the top of the bottom plate, the two second worms are respectively fixedly mounted on two output shafts of the double-shaft motor, the two second worm gears are respectively fixedly sleeved on the two screw rods, and the two second worms are respectively meshed with the two second worm gears.

Preferably, a plurality of mounting hole sites are formed on the bottom plate.

Compared with the prior art, the utility model provides a crankshaft grinder's graduation headstock has following beneficial effect:

the utility model provides a crankshaft grinder's graduation headstock can lock the work piece through hydraulic chuck, can be comparatively convenient carry out the graduation operation to the work piece through electronic indexing mechanism, can adjust the machined height of work piece through high adjustment mechanism, can carry out highly spacing to the lifter plate through two stoppers, can drive two screw rods through synchronous slewing mechanism and rotate in step, can install the device on the grinding machine through a plurality of mounting holes.

Drawings

Fig. 1 is a schematic structural view of an indexing head frame of a crankshaft grinding machine according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of portion A shown in FIG. 1;

fig. 3 is an enlarged schematic view of a portion B shown in fig. 1.

Reference numbers in the figures: 1. a base plate; 2. a limiting plate; 3. a top plate; 4. a U-shaped plate; 5. a main shaft; 6. a hydraulic chuck; 7. a first worm; 8. a first worm gear; 9. a stepping motor; 10. a drive bevel gear; 11. a driven bevel gear; 12. a controller; 13. a screw; 14. a lifting plate; 15. a cylinder; 16. a double-shaft motor; 17. a second worm; 18. a second worm gear.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1-3, fig. 1 is a schematic structural diagram of an indexing head frame of a crankshaft grinding machine according to a preferred embodiment of the present invention; FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1; fig. 3 is an enlarged schematic view of a portion B shown in fig. 1. The indexing head frame of the crankshaft grinding machine comprises: a base plate 1; the two limiting plates 2 are fixedly arranged at the top of the bottom plate 1; a top plate 3, wherein the top plate 3 is arranged on the top of the bottom plate 1; the U-shaped plate 4 is fixedly arranged at the top of the top plate 3; the main shaft 5 is rotatably arranged on the U-shaped plate 4; the hydraulic chuck 6 is fixedly installed at one end of the main shaft 5, and the type of the hydraulic chuck 6 is ROEHM-835753; the electric indexing mechanism is arranged on the U-shaped plate 4; the height adjusting mechanism is arranged at the top of the bottom plate 1; and the synchronous rotating mechanism is arranged at the top of the bottom plate 1.

The electric indexing mechanism comprises a first worm 7, a first worm wheel 8, a stepping motor 9, a driving bevel gear 10, a driven bevel gear 11 and a controller 12, wherein the first worm 7 is rotatably installed at the top of the top plate 3, the first worm 7 is rotatably connected with the U-shaped plate 4, the first worm wheel 8 is fixedly sleeved on the main shaft 5, the first worm wheel 8 is meshed with the first worm 7, the stepping motor 9 is fixedly installed at the top of the U-shaped plate 4, the driving bevel gear 10 is fixedly sleeved on an output shaft of the stepping motor 9, the driven bevel gear 11 is fixedly sleeved on the first worm 7, the driving bevel gear 10 is meshed with the driven bevel gear 11, the controller 12 is arranged on one side of the U-shaped plate 4, and the controller 12 is electrically connected with the stepping motor 9 and can conveniently index a workpiece through the electric indexing mechanism.

Height adjusting mechanism includes two screw rods 13, lifter plate 14 and cylinder 15, two screw rod 13 all rotates to be installed the top of bottom plate 1, lifter plate 14 threaded sleeve is established two on the screw rod 13, cylinder 15 fixed mounting is in the top of lifter plate 14, cylinder 15 with roof 3 fixed connection can adjust the machining height of work piece through height adjusting mechanism.

Two the equal fixed mounting in top of screw rod 13 has the stopper, can carry out height-limiting to lifter plate 14 through two stoppers.

Synchronous slewing mechanism includes biax motor 16, two second worms 17 and two second worm wheels 18, biax motor 16 fixed mounting be in the top of bottom plate 1, two second worms 17 fixed mounting respectively is in on two output shafts of biax motor 16, two second worm wheel 18 fixed cover is respectively established two on the screw rod 13, two second worms 17 respectively with two second worm wheel 18 meshes mutually, can drive two screw rod 13 synchronous rotations through synchronous slewing mechanism.

A plurality of mounting hole sites are formed in the bottom plate 1, and the device can be mounted on a grinding machine through the mounting holes.

The utility model provides a bent axle grinding machine's graduation headstock's theory of operation as follows:

when the device is used, bolts are installed in a plurality of installation hole sites, the device is installed on a grinding machine through the installation hole sites and the corresponding bolts, a workpiece is placed in a hydraulic chuck 6, the workpiece is locked through the hydraulic chuck 6, when the angle of the workpiece needs to be adjusted, the output shaft of a stepping motor 9 is controlled to rotate by a certain angle through a controller 12, the stepping motor 9 drives a driving bevel gear 10 to rotate, the driving bevel gear 10 drives a driven bevel gear 11 to rotate, the driven bevel gear 11 drives a first worm 7 to rotate, the first worm 7 drives a first worm wheel 8 to rotate, the first worm wheel 8 drives a main shaft 5 to rotate, the hydraulic chuck 6 is fixed on the workpiece to rotate by a certain angle through the rotation of the main shaft 5, and it needs to be noted that the device can be set in a related mode on the controller 12 according to the ratio of the certain angle of the rotation of the stepping motor 9 to the rotation angle of the main shaft 5, and accordingly the indexing operation can be relatively intuitive;

when the height of a workpiece needs to be adjusted, the double-shaft motor 16 is started, the double-shaft motor 16 drives the two second worms 17 to rotate, the two second worms 17 drive the two second worm gears 18 to rotate, the two second worm gears 18 drive the two screw rods 13 to rotate, the two screw rods 13 rotate to drive the lifting plate 14 to move up and down, and the lifting plate 14 drives the top plate 3 to move up and down through the cylinder 15, so that the machining height of the workpiece is adjusted.

the utility model provides a dividing headstock of crankshaft grinder can lock the work piece through hydraulic chuck 6, can be comparatively convenient carry out the graduation operation to the work piece through electronic indexing mechanism, can adjust the machining height of work piece through height adjusting mechanism, can carry out high spacing to lifter plate 14 through two stoppers, can drive two screw rods 13 synchronous rotations through synchronous slewing mechanism, can install the device on the grinding machine through a plurality of mounting holes.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. An indexing head for a crankshaft grinding machine, comprising:

a base plate;

the two limiting plates are fixedly arranged at the top of the bottom plate;

a top plate disposed on top of the bottom plate;

the U-shaped plate is fixedly arranged at the top of the top plate;

the main shaft is rotatably arranged on the U-shaped plate;

the hydraulic chuck is fixedly arranged at one end of the main shaft;

the electric indexing mechanism is arranged on the U-shaped plate;

the height adjusting mechanism is arranged at the top of the bottom plate;

and the synchronous rotating mechanism is arranged at the top of the bottom plate.

2. The index head frame of the crankshaft grinding machine as claimed in claim 1, wherein said electric indexing mechanism comprises a first worm, a first worm gear, a stepping motor, a driving bevel gear, a driven bevel gear and a controller, said first worm is rotatably mounted on the top of said top plate, said first worm is rotatably connected with said U-shaped plate, said first worm gear is fixedly mounted on said main shaft, said first worm gear is engaged with said first worm, said stepping motor is fixedly mounted on the top of said U-shaped plate, said driving bevel gear is fixedly mounted on the output shaft of said stepping motor, said driven bevel gear is fixedly mounted on said first worm, said driving bevel gear is engaged with said driven bevel gear, said controller is mounted on one side of said U-shaped plate, and said controller is electrically connected with said stepping motor.

3. The indexing head frame of the crankshaft grinding machine as claimed in claim 1, wherein said height adjustment mechanism comprises two screws, a lifting plate and a cylinder, wherein both of said screws are rotatably mounted on the top of said bottom plate, said lifting plate is threadedly mounted on both of said screws, said cylinder is fixedly mounted on the top of said lifting plate, and said cylinder is fixedly connected with said top plate.

4. The indexing head carriage of a crankshaft grinding machine as claimed in claim 3, wherein a stop block is fixedly mounted on the top end of each of the two screws.

5. The index head frame of the crankshaft grinding machine as claimed in claim 3, wherein said synchronous rotating mechanism includes a dual-shaft motor, two second worms and two second worm wheels, said dual-shaft motor is fixedly installed on the top of said bottom plate, said two second worms are respectively fixedly installed on two output shafts of said dual-shaft motor, said two second worm wheels are respectively fixedly sleeved on said two screw rods, and said two second worms are respectively engaged with said two second worm wheels.

6. The indexing head carriage of a crankshaft grinding machine as claimed in claim 1, wherein said base plate defines a plurality of mounting holes.